402140752692 has 48 divisors (see below), whose sum is σ = 1072409907072. Its totient is φ = 114893654400.

The previous prime is 402140752691. The next prime is 402140752723. The reversal of 402140752692 is 296257041204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402140752691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3557442 + ... + 3668742.

It is an arithmetic number, because the mean of its divisors is an integer number (22341873064).

Almost surely, 2^402140752692 is an apocalyptic number.

402140752692 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

402140752692 is an abundant number, since it is smaller than the sum of its proper divisors (670269154380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402140752692 is a wasteful number, since it uses less digits than its factorization.

402140752692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154328 (or 154326 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

Adding to 402140752692 its reverse (296257041204), we get a palindrome (698397793896).

The spelling of 402140752692 in words is "four hundred two billion, one hundred forty million, seven hundred fifty-two thousand, six hundred ninety-two".